Project: Chip & Sip Championship
A live pooled-stakes engine built for a 20-player golf tournament in Spain. Money goes into pools, exposure sits across outcomes, prices recalculate as stakes arrive, and everything settles at the close. A different setting to insurance. Recognisably the same mechanics.
Why this one is here
Insurance runs on pooled money, exposure spread across outcomes, pricing that has to reflect the live position, and settlement that has to be right. A tote board does the same job in miniature and at speed, with 20 people watching the numbers and no room to fudge them. We modelled it, built it, and ran it live across a 4-day event.
What we built
A public web app with no login wall, on a Supabase backend. Markets across 4 rounds of match play. A pricing engine that recalculates every price the moment stakes land in a pool. A live data feed pulling player form and match results from Squabbit, the group's scoring app, so the board moves as the golf does. Collection handled through a single settlement link. One administrator, delegated score-entry roles for team captains, and a full audit trail behind every position.
The challenge
- Prices had to recalculate the instant money moved, with no manual intervention and no way to game the timing.
- Results lived in a third-party app with no formal API, so the feed had to be built around what that app actually exposes.
- 20 people using it at once, on phones, on a golf course, on foreign mobile data.
- Zero tolerance on settlement. Everyone in the group knows everyone else.
What it proves
Not sector knowledge. That we can take an unglamorous piece of financial mechanics, model it correctly, wire it to a live external data source, and ship it working and fast, with real money and real people on the other end of it.